package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioProperties;
import com.atguigu.lease.web.admin.service.FileUploadService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileUploadServiceImpl implements FileUploadService {
    @Autowired
    private MinioClient minioClient;
    @Autowired
    private MinioProperties minioProperties;

    @Override
    public String upload(MultipartFile file) throws IOException, ServerException, InsufficientDataException,
            ErrorResponseException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException,
            XmlParserException, InternalException {

        String bucketName = minioProperties.getBucketName();
        boolean bucketExists = minioClient.bucketExists(BucketExistsArgs.builder().bucket(bucketName).build());
        if (!bucketExists) minioClient.makeBucket(MakeBucketArgs.builder().bucket(bucketName).build());
        String policy = """
                 {
                   "Statement" : [ {
                     "Action" : "s3:GetObject",
                     "Effect" : "Allow",
                     "Principal" : "*",
                     "Resource" : "arn:aws:s3:::lease/*"
                   } ],
                   "Version" : "2012-10-17"
                 }
                """;
        minioClient.setBucketPolicy(SetBucketPolicyArgs.builder()
                .bucket(bucketName).config(policy).build());
        String filename = new SimpleDateFormat("yyyyMMdd").format(new Date()) + "/" +
                UUID.randomUUID() + "-" + file.getOriginalFilename();
        minioClient.putObject(PutObjectArgs.builder().
                bucket(minioProperties.getBucketName()).
                object(filename).
                stream(file.getInputStream(), file.getSize(), -1).
                contentType(file.getContentType()).build());

        return String.join("/", minioProperties.getEndpoint(), minioProperties.getBucketName(), filename);
    }
}
